Cord lock

Abstract

A pressing portion is housed movably in a front-and-back direction inside a main member portion. In the main member portion, two main-member-portion holes through which a string member passes are formed on a side wall forming an opening portion. The pressing portion includes a pressing face on a front face, and internally provides a pressing-portion string insertion portion which can communicate with the two main-member-portion holes and through which the string member passes. A bend insertion portion for inserting the string member to pass through by bending the string member inside the pressing portion is provided. An urging device for urging the pressing portion is provided at a position wrapping a virtual three-dimensional shape obtained by connecting, with straight lines, two imaginary faces on which an inner face of the side wall and an outer shape of the string member passing through the two main-member-portion holes intersect.

What is claimed is: 
     
       1. A cord lock, comprising:
 a main member portion including an opening portion on a front face, side walls surrounding the opening portion, and two main-member-portion holes through which a string member is configured to pass the side walls; 
 a pressing portion housed movably in a front-and-back direction inside the main member portion, and including a pressing face on a front face and a pressing-portion string insertion portion inside the pressing portion to communicate with the two main-member-portion holes, through which the string member is configured to pass an inside of the pressing portion; and 
 an urging device arranged between the main member portion and the pressing portion and urging the pressing portion in a direction away from the main member portion, the urging device being located between the two main-member-portion holes; 
 wherein the pressing-portion string insertion portion includes a bend insertion portion arranged at a side of the urging device outside an extension line of the urging device and between the two main-member-portion holes so that the string member is configured to pass at the side of the urging device, and 
 the pressing portion includes an opening portion opened to the bend insertion portion at one portion on an opposite face side opposite to the pressing face. 
 
     
     
       2. A cord lock according to  claim 1 , wherein the pressing portion includes a cylinder concave portion, and the urging device is a coil spring housed in the cylinder concave portion. 
     
     
       3. A cord lock according to  claim 2 , wherein the bend insertion portion is provided in such a way so as to pass a peripheral wall of the cylinder concave portion. 
     
     
       4. A cord lock according to  claim 1 , wherein the bend insertion portion is arranged so that the string member is configured to be bent to pass the side of the urging device between the two main-member-portion holes. 
     
     
       5. A cord lock according to  claim 1 , wherein the pressing-portion string insertion portion includes two openings, and the two openings and the two main-member-portion holes are located at portions at least partially aligned to each other. 
     
     
       6. A cord lock, comprising:
 a main member portion including an opening portion on a front face, side walls surrounding the opening portion, and two main-member-portion holes through which a string member is configured to pass the side walls; 
 a pressing portion housed movably in a front-and-back direction inside the main member portion, and including a pressing face on a front face and a pressing-portion string insertion portion inside the pressing portion to communicate with the two main-member-portion holes, through which the string member is configured to pass an inside of the pressing portion; and 
 an urging device arranged between the main member portion and the pressing portion and urging the pressing portion in a direction away from the main member portion, the urging device being located between the two main-member-portion holes; 
 wherein the pressing-portion string insertion portion includes a bend insertion portion arranged at a side of the urging device outside an extension line of the urging device and between the two main-member-portion holes so that the string member is configured to pass at the side of the urging device, and 
 the two main-member-portion holes are arranged perpendicular to an urging direction of the urging device, and 
 the bend insertion portion is curved about a central axis of the urging device toward the two main-member-portion holes. 
 
     
     
       7. A cord lock according to  claim 6 , wherein the main member portion further includes a boss portion arranged between the two main-member-portion holes and extending toward the opening portion to fit the urging device therearound, a protrusion portion protruding toward the opening portion and facing the pressing-portion string insertion portion, the protrusion portion being formed in an arc shape around the boss portion, and slide grooves formed on the side walls in a direction perpendicular to the two main-member-portion holes. 
     
     
       8. A cord lock according to  claim 7 , wherein the pressing portion further includes a concave portion arranged at a side of the pressing-portion string insertion portion, in which the urging device and the boss portion are housed, a peripheral wall sectioning the concave portion and the pressing-portion string insertion portion inside the pressing portion, along which the pressing-portion string insertion portion extends, and slide projections protruding outwardly from the pressing portion and fitting into the slide grooves to regulate movement of the pressing portion.